Alavanca Mandibular

Abstract

This work has the purpose of reviewing the literature on the jaw lever system and, as a pathological occlusion modifies the system causing damage to components of the stomatognathic system. The levers can be classified into Class I or Inter-sets in Class II or Inter-Resistant and Class III or Interpotente. The mandibular lever within a point of view ideally should be Class III, where the fulcrum is represented by the temporomandibular joint, the force applied or power is provided by the muscles and the desktop is on the teeth. During the lateral movement if there is any contact interfering in the balancing side can form a lever of 2 ° or 1° genre depending on the gender intensity of touch. During protrusive movement, there is some interference in the teeth after the lever system switches to a lever 1° genre. A contact in centric interference can also generate a lever Class I. This shift lever can bring unpleasant consequences for the patient, such as wear of the teeth, destruction of periodontal support and the emergence of myofascial pain and dysfunction.